Horn-actuating mechanism.



J. R. MARSICO.

HORN ACTUATING MECHANISM.

APPLICATION FILED MAY 20. 1916. I

Patented Dec. 24, 1918.

v 8 Huc nrol Jerard RMarsico FIQ.

HORN-ACTUATING MECHANISM.

Application filed May 20, 1916.

To all whom it may concern:

Be it known that I, JERARD R. MARSICO, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Horn-Actuating Mechanism, of which the following is a specification.

My invention relates to horns, signals, alarms, or the like wherein the sound is pro duced by mechanically disturbing or flexing a resilient diaphragm and among its many features of construction, it includes an adjustable striker mechanism for producing clear and soft sound of high intensity, power and proper pitch.

The present invention resides in mechanism for increasing the velocity and amplitude of the movement of the diaphragm so that the vibrations produced will be of large carrying power and such power being regulatable so that the largeness of the sound and its carrying power may be varied according to the desires of the operator.

I have also provided a regulating mechanism for the striker or rotor which will be fully operative for the purpose of compensating for all ordinary losses of efficiency of the striker and anvil with a continued use of the horn.

Among other objects in view, the invention consists of a peculiarly formed anvil or wear piece having an attenuated contacting surface which gradually merges into an enlarged portion of the anvil, the former and the latter being of the same degree of hardness, and the enlarged portion having connection with the diaphragm so that the vibrations will be such that a resulting clear tone will follow. The restricted portion while being of the same degree of hardness as the enlarged portion, is free to yield sufficiently to permit of the desired movement of the striker or rotor relatively of the diaphragm for the purpose specified.

With the above and other objects in view which will appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement of parts which will be hereinafter more fully described and particularly pointed out in the claim.

In the drawings forming a part of this specification and in which like numerals of Specification of Letters Patent.

Patented Dec. 24, 1918.

Serial No. 98,840.

reference indicate similar parts throughout the several views Figure 1 is a side view of the horn with parts in section.

Fig. 2 is a side view of another form of horn showing the application of the invention thereto.

Fig. 8 is a sectional view of the horn shown in Fig. l with parts in elevation, the striker and anvil being on an enlarged scale.

Fig. 4 is a section through a portion of the motor.

On reference to Fig. 1 of the drawings it is seen that use is made of a horn A, including a bell B, and a resonator G, a diaphragm D, being interposed between the former and the latter and secured thereto in any suitable well known manner. Said resonator is provided with a tubular depending extension E, provided with a vertical passage F, which is flared and arranged with its restricted end lowermost. The extension is provided at diametrically opposite sides with passages F which receive screws or equivalent studs G which extend through lugs H, on a motor casing I, the latter containing any suitable well known form of motor whlch may be influenced by a controlling cord J, having a push button K. The shell of the resonator is connected with a bracket L, having a suitable stand M.

The head piece N, of the motor casing I, is provided with a vertical bushing O, which extends through the flared passage F, in the extension E, of the resonator. The shaft P, of the motor extends through the bushing and it terminates within the resonator as shown in Fig. 1. At this point the shaft supports a striker or rotor 1, held to the shaft by a nut 2. Adjacent to the striker and embracing the bushing O, is a collar 3. Loosely connected with the collar 3 is an adjusting screw 7. The screw passes through a threaded passage 9, in the adjacent wall of the resonator and exteriorly of said wall, the screw is exposed and provided with a kerf 10, by means of which it may be manipulated by a suitable tool. In this manner the entire motor is adapted to tilt from the resonator body of the structure in order that the striker may be moved toward or away from the diaphragm for a purpose to be hereinafter explained. Jam nuts 11 are mounted upon the screw and one of these nuts is nular series of parallel arranged relatively shallow depressions or cuts 12, adapted to co-act with fingers 13l3, upon an anv l or wear piece 14. The fingers 13 of the anvil or wear piece are rather attenuated and each is of a restricted diameter toward the striker and in the opposite direction the said fingers merge into the enlarged body portion of the anvil which is passed through the center of the diaphragm D, after having been associated with companion washers 15l5, arranged respectively at the opposite sides of the diaphragm. The anvil may be constructed of steel of the same uniform degree of hardness throughout. In view of the pe-- culiar arrai'igement of the fingers 1313, which, as described, are attenuated, it will be'observed that the latter are adapted to yield slightly in order that they will accommodate themselves accurately to the various angles of adjustment of the striker 1. It is found that by providing the attenuated fingers 13-13 of the restricted diameter in the direction of the striker 1, the vibrations which are imparted thereto to contact with the striker, will be very nicely transmitted to the main central body of the anvil to be taken up by the diaphragm with a resultant clear, and amplified or augmented sound.

What is claimed as new is A sound producing device for signals,

comprising a motor, an acoustic diaphragm,

having a wear piece, a resonator shell supporting said diaphragm, and including an extended portion having a flared passage, a widened end of which is extended into said shell, driving mechanism mounted to tilt from the extension and having a shaft eX- tending through said passage, and a striker located in said shell and secured to said shaft, a bushing carried by the motor, and embracing the shaft, a collar extending around the bushing, and a threaded stem working through the shell and connected with the collar so that on adjustment thereof the motor and said striker will be tilted, as and for the purpose set forth.

In testimony whereof I aiiix my signature in presence of two witnesses.

J ERARD R. MARSICO. Witnesses:

JOHN CALIGIURI, JAMES O. KoEHL.

. Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G. 

